Log:
This is the input argument from the Top3 function:
"a a a b c c d d d d e e e e e
e e e e DDD ddd DdD: ddd ddd aa aA Aa, bb cc cC e e e
//wont won't won't
, e ..
...
' "

This is the error it generates:

Test Failed
Expected is <System.Collections.Generic.List1[System.String]> with 0 elements, actual is <System.Collections.Generic.List1[System.String]> with 1 elements
Values differ at index [0]
Extra: < "'" >

How can you possibly send an empty list if there is clearly multiple frequently used words in the input?